From: Chris Salls <salls@cs.ucsb.edu>
Date: Sat, 8 Apr 2017 06:48:11 +0000 (-0700)
Subject: mm/mempolicy.c: fix error handling in set_mempolicy and mbind.
X-Git-Tag: v3.2.89~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f3b4a9db31af279e793229177b63ea201e24629;p=pandora-kernel.git

mm/mempolicy.c: fix error handling in set_mempolicy and mbind.

commit cf01fb9985e8deb25ccf0ea54d916b8871ae0e62 upstream.

In the case that compat_get_bitmap fails we do not want to copy the
bitmap to the user as it will contain uninitialized stack data and leak
sensitive data.

Signed-off-by: Chris Salls <salls@cs.ucsb.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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